If you want to make a website, you need 2 things - your own domain and a web hosting plan for it. The domain registration is the actual website address that you type in an Internet browser to access a website, while the hosting space is where your site files will be. These are 2 tightly connected, but separate services, although many people believe that registering the domain is enough. Just like the disk space and the monthly traffic features that a given hosting plan features, there are a certain number of registered domains you can add as hosted which means that you can have the web content for them in some account even if the domains have been registered via a different company. In technical terms, it doesn't matter if a domain name is registered and hosted with the exact same company or is registered with one company and directed to a different one - either way your sites will operate in exactly the same way.